This folding 5 point harness-to-booster looks pretty awesome. We're looking for a travel seat for our 2 year old, who fits the height and weight requirements of the Immi Go. And I love that it seems so foolproof and quick to install in taxis, etc. And that it can go in the overhead bin of an airplane!

We tend to travel a few times a year, and sometimes have to take taxis and our Foonf is not conducive to any of that. Has anyone used one of these?